Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and high-fidelity visual synthe…
Model details →Google: Nano Banana Pro (Gemini 3 Pro Image Preview) vs Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)
Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced contextual understanding with fast, cos…
Model details →Side-by-side comparison
| Capability | Google: Nano Banana Pro (Gemini 3 Pro Image Preview) | Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 66K | 66K | Tie |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.00 | $0.50 | 🏆 Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $12.00 | $3.00 | 🏆 Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) |
| Tool / function calling First-class support for emitting structured tool calls. | — | — | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Google: Nano Banana Pro (Gemini 3 Pro Image Preview) better than Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)?
Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Google: Nano Banana Pro (Gemini 3 Pro Image Preview) and Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)?
Input: $2.00 vs $0.50 per 1M tokens. Output: $12.00 vs $3.00 per 1M tokens.
What context windows do Google: Nano Banana Pro (Gemini 3 Pro Image Preview) and Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) support?
Google: Nano Banana Pro (Gemini 3 Pro Image Preview) supports up to 66K tokens. Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) supports up to 66K tokens.
Do both Google: Nano Banana Pro (Gemini 3 Pro Image Preview) and Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) support tool calling?
Google: Nano Banana Pro (Gemini 3 Pro Image Preview): not advertised. Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview): not advertised.